This diagram shows a typical surface cross section as it might appear, magnified many thousands of times, under an electron microscope. The surface might be that of a fiber, or of a painted wall, or even wall paper. In Line No. 1, rough soil...
This complicated piece of high vacuum apparatus in the laboratories of the Chemical Department of DuPont is used for measuring the surface are of fine powders, such as pigments. The process involves measuring the amount of gas such as nitrogen...
Final inspection of Dycril printing plates under gold light at DuPont's new plant at Parlin, New Jersey. Operator here inspects plate to insure against surface flaws. When used in printing, the photosensitive plate is placed in contact with a...
Final inspection of Dycril printing plates under gold light at DuPont's new plant at Parlin, New Jersey. Operator here inspects plate to insure against surface flaws. When used in printing, the photosensitive plate is placed in contact with a...
One of the huge wheels on which base for DuPont cellulose acetate photographic film is formed at Parlin, New Jersey plant. The wheel shown here is in the shop for replating. In the casting house, liquid dope is flowed on the surface of the wheel....
Practically all types of sanding equipment can be used satisfactorily on Lucite methyl methacrylate resin. Drum sanders are most suitable for curved edges. Disc sanders work well when removing material from straight edges and outside curves. Belt...
This complicated physical apparatus at the Experimental Station of DuPont determines the total surface area of particles of finely divided materials. These determinations are important in developing pigment for finishes and other products base on...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
The batch of stainless steel shown above has just been removed from a DuPont Sodium Hydride Descaling Process bath at Manganese Steel Forge Company, Philadelphia, Pennsylvania. Backed by nearly ten years of commercial experience, this descaling...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
